It resembles the appearance of the car's original interior trim. The clock also accurate, showed clear. Shell material for high temperature resistant plastic, has anti-aging, long life characteristics The time and temperature display rotates, once the display mood is set, no need to set next time. Manual correction of temperature measurement error, correction range: - 5 - 5C Temperature measurement range: -55-130`C Car Vehicle Digital Clock Timer Luminous Temperature Thermometer Voltmeter Item Specifications: Include time or temperature or voltage three functions in one template With four display models: 1. Show time only 2. Show temperature only 3. Show voltage only 4.Time and temperature display take turns, once the display mood be set, no need to set next time, with memory function, with manual correct temperature error function, adjustment range: -5-5 . Within the import memory battery long-time import, continue to work even the car was broken. Small size (max): 97x44x19mm